Question

Write the functions of the following.

(i) Vacuole (ii) Golgi Bodies (iii) Endoplasmic Reticulum​

Answer 1

Answer:

(I) A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.

(2) A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.

(3) The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.

Explanation:

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Answer 2

Answer:

(i) The functions of the vacuole include:

• Isolating materials that might be harmful or a threat to the cell.
• Containing waste products.
• Containing water in plant cells.
• Maintaining internal hydrostatic pressure or turgor within the cell.
• Maintaining an acidic internal pH.
• Containing small molecules.

(ii) The functions of Golgi body

• The vital function of the Golgi apparatus is packaging and secretion of proteins.
• It receives proteins from Endoplasmic Reticulum.
• It packages it into membrane-bound vesicles, which are then transported to various destinations, such as lysosomes, plasma membrane or secretion.
• They also take part in the transport of lipids and the formation of lysosomes.

(iii) The function of endoplasmic reticulum

• They are filled with fluids and carries materials throughout the cell due to which it is also called transport system of the cell. It transports materials between the regions of cytoplasm or between the cytoplasm and nucleus. It also provides a surface for some biochemical activities of cell.